Is CVE-2011-4087 in the CISA KEV catalog?

No. CVE-2011-4087 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-4087?

CVE-2011-4087 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2011-4087?

CVE-2011-4087 has an EPSS score of 2.67% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2011-4087?

Upgrade linux kernel to 2.6.39 or later.

CVE & CISA-KEV Catalog

CVE-2011-4087

HIGHEPSS 84th pctl

7.5

CVSS v3

NVD

Description

The br_parse_ip_options function in net/bridge/br_netfilter.c in the Linux kernel before 2.6.39 does not properly initialize a certain data structure, which allows remote attackers to cause a denial of service by leveraging connectivity to a network interface that uses an Ethernet bridge device.

CWE-665

How to fix

Remediation Available

linux kernelNVD

Affected:< 2.6.39Fixed in:2.6.39CVE-2011-4087derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

2.67%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory2

Other references1

git.kernel.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.